Stupid me. Completely forgot about configuring laptops. As for which one is better, the 650M is. Processor wise, there is a big difference. The i5-2450M is a competitor to the A10-4600M. That's where the difference is. If you configure the dv6z with the A10, the price is about the same as the i5 which makes sense. The A6 is much weaker thus your $120 price difference. A GPU is as only good as it's CPU.